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TESTS OF THE EINSTEIN EQUIVALENCE PRINCIPLE USING TeV BLAZARS
Wei, Jun-Jie1; Wang, Jie-Shuang2; Gao, He3; Wu, Xue-Feng1,4
2016-02-10
Source PublicationASTROPHYSICAL JOURNAL LETTERS
Volume818Issue:1
AbstractThe observed time delays between different energy bands from TeV blazars provide a new, interesting way of testing the Einstein Equivalence Principle (EEP). If the whole time delay is assumed to be dominated by the gravitational field of the Milky Way, the conservative upper limit on the EEP can be estimated. Here, we show that the strict limits on the differences of the parameterized post-Newtonian parameter gamma values are gamma(Tev) - gamma(keV) < 3.86 x 10(-3) for Mrk 421 and gamma(TeV) - gamma(keV) < 4.43 x 10(-3) for Mrk 501, while expanding the scope of the tested EEP energy range out to the TeV-keV range for the first time. With the small time lag from the 0.2-0.8 TeV and > 0.8 TeV light curves of PKS 2155-304, a much more severe constraint on gamma differences of similar to 10(-6) can be achieved, although the energy difference is of the. order of similar to TeV. Furthermore, we can combine these limits on the energy dependence of gamma with the bound on the absolute gamma value gamma - 1 similar to 0.3% from light deflection measurements at the optical (eV) bands, and conclude that this absolute bound on gamma can be extended from optical to TeV energies.
KeywordBl Lacertae Objects: General Gravitation
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.3847/2041-8205/818/1/L2
WOS KeywordACTIVE GALACTIC NUCLEI ; MARKARIAN 501 ; MILKY-WAY ; RADIO ; VARIABILITY ; PHOTONS ; OBJECTS ; FLARE
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000369605600002
Citation statistics
Cited Times:28[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/16131
Collection南极天文中心
Affiliation1.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Peoples R China
2.Nanjing Univ, Sch Astron & Space Sci, Nanjing 210093, Jiangsu, Peoples R China
3.Beijing Normal Univ, Dept Astron, Beijing 100875, Peoples R China
4.Nanjing Univ, Purple Mt Observ, Joint Ctr Particle Nucl Phys & Cosmol, Nanjing 210008, Jiangsu, Peoples R China
Recommended Citation
GB/T 7714
Wei, Jun-Jie,Wang, Jie-Shuang,Gao, He,et al. TESTS OF THE EINSTEIN EQUIVALENCE PRINCIPLE USING TeV BLAZARS[J]. ASTROPHYSICAL JOURNAL LETTERS,2016,818(1).
APA Wei, Jun-Jie,Wang, Jie-Shuang,Gao, He,&Wu, Xue-Feng.(2016).TESTS OF THE EINSTEIN EQUIVALENCE PRINCIPLE USING TeV BLAZARS.ASTROPHYSICAL JOURNAL LETTERS,818(1).
MLA Wei, Jun-Jie,et al."TESTS OF THE EINSTEIN EQUIVALENCE PRINCIPLE USING TeV BLAZARS".ASTROPHYSICAL JOURNAL LETTERS 818.1(2016).
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